Rational application of nitrogen fertilizer. According to the fertilizer requirement of vegetables, nitrogen fertilizer should be applied. In the application of nitrogen fertilizer, it should be applied in depth and combined with phosphorus and potassium fertilizer. After application, the soil should be covered in time to separate it from the air to reduce the loss of volatilization. The deep application of base fertilizer, the application of seed fertilizer, the application of top dressing or the application of acupoints can significantly improve the fertilizer efficiency of nitrogen fertilizer.
Carbon dioxide fertilization. Use plant-converted carbon dioxide to promote early maturity and high yield. At the same time, according to the "Agricultural Resources Taobao Guide", the use of photosynthetic nutrient film fertilizer to help plants absorb a lot of light fertilizer, light energy, light, supply plant growth and development to the limit.
Increase the application of ecological organic fertilizer. When using livestock manure, human excrement, etc. as a fertilizer, it must be fully decomposed, otherwise it will not only be slow in fertilizer efficiency, easy to burn roots, but also affect the growth of vegetables due to the production of toxic gases. In the method of topdressing, it is necessary to "from near to far", that is, the vegetable is poured in the seedlings every hour, and with the growth of the root system, it can be poured slightly away from the root. Combining foliar application promotes plant growth.
What is the Details of our stellite Seal Ring ?
|
Material : |
Stellite –Grade 3.6.12 |
|
Process : |
Powder Metallurgy , it is short for PM and investment casting |
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Hardness: |
38-55 HRC |
|
Density : |
8.4 g/cm ³ |
|
Size : |
Diameter 8-500mm, length 600mm |
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Properties : |
Wear and corrosion resistance, high temperature resistance |
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Application : |
as a seal ring |
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Instructions : |
Drawing made upon customer`s request |
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Usage : |
sealing parts |
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Tolerance control : |
turning or grinding surface , tolerance upon drawing |
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Production lead time |
Samples 10 days , normal order 15-30 days |
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Production capacity : |
20,000pcs one month. |
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Package : |
carton or wooden case , pallet for export |
Stellite Chemical compositions and properties (%)
|
Brand |
C |
Mn |
Si |
Cr |
Ni |
Mo |
W |
Co |
Fe |
P |
S |
Density (g/cm3) |
Hardness (HRC) |
|
Stellite 3 |
2.0-2.7 |
1.0 |
1.0 |
29-33 |
3.0 |
|
11-14 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.55 |
51-55 |
|
Stellite 6 |
0.9-1.4 |
1.0 |
1.5 |
27-31 |
3.0 |
1.5 |
3.5-5.5 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.35 |
38-44 |
|
Stellite 12 |
1.1-1.7 |
1.0 |
1.0 |
28-32 |
3.0 |
|
7.0-9.5 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.40 |
44-49 |
Production process of our Valve Seat ring
Oil pump and valves ,butterfly valve and global valve
The Sealing Ring can be used in many industry and equipment when you need the parts with wear resistance , corrosion resistance and high temperature at same time .
We guarantee the high precision size and straight tolerance control
O Ring Seal,Corrosion Resistant Seal,Peek Seal Ring,High Quality Peek Seal Ring
Shenyang New Industry Co.,LTD , https://www.topcobalt.com